Saikū weather in June

In June, Saikū sees average daytime highs of 25°C and overnight lows near 20°C, with 235 mm of rain across 15 wet days and about 14.3 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 27°C by the end. The sky is clear or mostly clear about 12% of the time in June, and the air most often feels muggy.

Daylight stretches from about 14 h 06 min at the start of June to 14 h 18 min by month's end. Set against the rest of the year, June is Saikū's 12th-clearest and 10th-windiest month. For the whole year in context, see Saikū's year-round climate.

Daytime high
25°
4th warmest
Overnight low
20°
9th coldest
Rainfall
235 mm
15 wet days
Daylight
14 h 18 min
4:45 AM – 7:03 PM
Cloud cover
79%
12th clearest
Wind
11 km/h
10th windiest
Solar energy
5.17 kWh/m²
Travel score
5.6
out of 10

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 24°C in the first days to 27°C by the end.

A typical June day in Saikū reaches about 25°C in the afternoon and slips back to 20°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 28°C. Set against its neighbours, June runs about 3°C warmer than May and about 4°C cooler than July.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12418
22418
32419
42419
52419
62419
72419
82419
92419
102520
112520
122520
132520
142520
152520
162520
172521
182621
192621
202621
212621
222621
232621
242622
252722
262722
272722
282722
292722
302723

How June really feels in Saikū

Once humidity and wind are folded in, June averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

June sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Saikū weather by month

How June compares with the rest of the year at a glance. June is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan10° / 705.9102.5
Feb11° / 72710.72.8
Mar14° / 12610.411.74.1
Apr18° / 12°1371012.85.8
May22° / 16°16411.813.86.4
Jun25° / 20°2351514.35.6
Jul29° / 24°19114.514.14.7
Aug30° / 25°14413.613.34.4
Sep27° / 22°24715.312.25.4
Oct22° / 17°25412.311.16.5
Nov17° / 12°1108.210.25.9
Dec12° / 706.49.73.8

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in June, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 10% of June, with mostly cloudy or overcast conditions the remaining 78%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13268
23169
33070
42971
52872
62773
72674
82674
92575
102476
112377
122377
132179
142179
151981
161981
171981
181981
191783
201783
211783
221783
231783
241783
251882
261882
271882
281882
291981
301981

Chance of precipitation in June

Any precipitation

Saikū gets around 235 mm of rain over 15 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 51% and peaks near 58% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
138
239
340
441
542
643
744
845
946
1047
1148
1250
1351
1452
1553
1654
1754
1855
1955
2056
2156
2256
2357
2457
2558
2658
2758
2858
2958
3057

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

Most of June feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, June lands in the muggy band about 38% of days. Sticky, muggy-or-worse air turns up on roughly 58% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11425411910
21324422110
31123422210
41022422420
5921432620
6820432730
7718422940
8617423140
9516413350
10414403560
11313393780
12311383990
132103641100
14293443120
15283244130
16173046150
17162847171
18162648191
19152448211
20142248231
21142048262
22141848282
23031647312
24031446343
25021345363
26021144394
27021042424
2801941445
2901839466
3001737487

Wind in June

Winds average 11 km/h in June.

Across June, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 06 min at the start of June to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over June. Sunrise moves from 4:47 AM to 4:48 AM, and sunset from 6:55 PM to 7:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.14:476:55
214.24:476:56
314.24:466:56
414.24:466:57
514.24:466:57
614.24:466:58
714.24:456:59
814.24:456:59
914.24:457:00
1014.34:457:00
1114.34:457:01
1214.34:457:01
1314.34:457:01
1414.34:457:02
1514.34:457:02
1614.34:457:03
1714.34:457:03
1814.34:457:03
1914.34:457:04
2014.34:457:04
2114.34:457:04
2214.34:467:04
2314.34:467:05
2414.34:467:05
2514.34:467:05
2614.34:477:05
2714.34:477:05
2814.34:477:05
2914.34:477:05
3014.34:487:05

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.17 kWh/m².

For context, solar energy here swings from a low near 2.62 kWh/m² to a high of 5.67 kWh/m² in May across the year — June's 5.17 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.5Bright
55.5Bright
65.5Bright
75.4Bright
85.4Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.1Bright
155.1Bright
165.1Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in June

Hazard calendar for Saikū

In seasonPeak

In June, Saikū sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Saikū sits in the Pacific typhoon belt; the season peaks July–October.

Pacific typhoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is June a good time to visit Saikū?

Our two travel scores rate June for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.6
Sightseeing
5th-best month of the year
5.2
Beach & pool
4th-best month of the year

June is a reasonable time to visit Saikū for sightseeing.

What to pack for Saikū in June

From June's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In June, Saikū sees daytime highs around 25°C and nights near 20°C. Pack rain gear. Worth having: light clothes and sun protection. About 15 days see rain.

rain gearlight clothessun protection

Sea temperature near Saikū in June

The nearest coast averages about 22°C in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 27°C and coldest in February near 14°C.

It's comfortable for a long swim from May 31 to Nov 11 — about 5.4 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec17Cool

UV index in Saikū in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Saikū peaks around July 13 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 13UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Saikū in June

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where June falls, not just the annual average.

Air quality in Saikū is worst in March — around 26 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (July, 16 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2326 µg/m³Jul 2316 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb21Moderate
Mar26Moderate
Apr26Moderate
May24Moderate
Jun20Moderate
Jul16Moderate
Aug16Moderate
Sep17Moderate
Oct19Moderate
Nov21Moderate
Dec18Moderate
Location & terrain

Where is Saikū?

Saikū sits at 34.5°N, 136.6°E, 10 m above sea level, in Japan. The nearest listed city is Tamaru, 6.0 km away.

Topography around Saikū

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saikū.

Within 3 km, the terrain around Saikū has only modest variations in elevation — a maximum elevation change of 64 m around an average of 13 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 604 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,887 m.

The land around Saikū is covered by cropland (50%) and artificial surfaces (26%) within 3 km, trees (34%) and water (33%) within 16 km, and trees (42%) and water (38%) within 80 km.

3 km
64 m
16 km
604 m
80 km
1,887 m
treesgrasslandcroplandartificial surfacesbare terrainwater
June weather nearby: Tamaru 6.0 km · Ise 8.0 km · Matsusaka 10 km · Toba 20 km · Hisai-motomachi 21 km · Tsu 25 km · Shima 29 km · Kawage 31 km

Japan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
100 V · 50 / 60 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$35,951
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.2
per 100k, 2023
Road deaths
3.6
per 100k/yr, 2019
Income group
High
World Bank
English
Very low
EF EPI 446
Religion
Shintoism 49%Buddhism 46%other 4%Christianity 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Saikū (34.5333°, 136.6333°, elevation 10 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).